Is Pink Vaginal Discharge With Clumps Sign Of Implantation?

i had my period on 4/29 and it lasted for fours days which is normal for me. on 5/14 i went to the bathroom and had light pink discharge and there were little clumps of the pink discharge in the toilet. it only happened once. I am exspecting my period again on 5/29. could this be implantation bleeding and could there be a chance that i may be pregnant? my husband and i have had sex multiple times everyday since i stopped my period and he has not pulled out.